Mathematics · Set Theory
If A = {1, 5, 3, 8, 9} and B = {2, 4, 5, 9}, then find A ∩ B and A ∪ B.
- 1A ∩ B = {3, 5}, A ∪ B = {1, 2, 4, 5, 8, 9}
- 2A ∩ B = {2, 5}, A ∪ B = {1, 2, 3, 5, 8, 9}
- 3A ∩ B = {5}, A ∪ B = {1, 2, 3, 4, 5, 9}
- 4A ∩ B = {5, 9}, A ∪ B = {1, 2, 3, 4, 5, 8, 9}✓
Correct answer
A ∩ B = {5, 9}, A ∪ B = {1, 2, 3, 4, 5, 8, 9}
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